Alternative definition : CDISC: A method of assessing capillary fragility that is used in the diagnosis of
hemorrhagic fevers. After taking a blood pressure measurement, the cuff is inflated
to a point midway between the assessed systolic and diastolic pressures and maintained
for five minutes; the cuff is then released and, after two minutes, the number of
petechiae below the antecubital fossa are counted.;